<template>
    <div class="search">
      <div class="search-box-wrapper">
        <search-box :placeholder="placeholder" ref="searchBox" @query="onQueryChange"></search-box>
      </div>
      <div class="shortcut-wrapper" v-show="!query" ref="shortcutWrapper">
        <scroll class="shortcut" :data="shortcut" ref="shortcut">
          <div>
            <div class="hot-key">
              <h1 class="title">热门搜索</h1>
              <ul>
                <li
                  class="item"
                  v-for="(item, index) in hotKey"
                  :key="index"
                  @click="addQuery(item.k)"
                >
                  <span>{{item.k}}</span>
                </li>
              </ul>
            </div>
            <div class="search-history" v-show="searchHistory.length">
              <h1 class="title">
                <span class="text">搜索历史</span>
                <span class="clear" @click="showConfirm">
              <i class="icon-clear"></i>
            </span>
              </h1>
              <search-list
                :searches="searchHistory"
                @select="addQuery"
                @delete="deleteOne"
              ></search-list>
            </div>
          </div>
        </scroll>
      </div>
      <div class="search-result" v-show="query" ref="suggestResult">
        <suggest :query="query" @listScroll="blurInput" @select="saveSearch" ref="suggest"></suggest>
      </div>
      <conrfirm
        ref="confirm"
        title="是否清空所有搜索历史"
        confirmBtnText="清空"
        @confirm="clearSearchHistory"
      ></conrfirm>
      <router-view></router-view>
    </div>
</template>

<script>
import SearchBox from 'base/search-box/search-box'
import {getHotKey} from 'api/search'
import {ERR_OK} from 'api/config'
import Suggest from 'components/suggest/suggest'
import SearchList from 'base/search-list/search-list'
import Conrfirm from 'base/confirm/confirm'
import Scroll from 'base/scroll/scroll'
import {mapActions, mapGetters} from 'vuex'
import {playlistMixin} from 'common/js/mixin'
export default {
  name: 'search',
  mixins: [playlistMixin],
  components: {
    SearchBox,
    Suggest,
    SearchList,
    Conrfirm,
    Scroll
  },
  data () {
    return {
      placeholder: '搜索歌曲、歌手',
      hotKey: [],
      query: ''
    }
  },
  created () {
    this._getHotKey()
  },
  watch: {
    query (newQuery) {
      if (!newQuery) {
        setTimeout(() => {
          this.$refs.shortcut.refresh()
        }, 20)
      }
    }
  },
  computed: {
    ...mapGetters([
      'searchHistory'
    ]),
    shortcut () {
      return this.hotKey.concat(this.searchHistory)
    }
  },
  methods: {
    ...mapActions({
      saveSearchHistory: 'saveSearchHistory',
      deleteSearchHistory: 'deleteSearchHistory',
      clearSearchHistory: 'clearSearchHistory'
    }),
    _getHotKey () {
      getHotKey().then((res) => {
        if (res.code === ERR_OK) {
          this.hotKey = res.data.hotkey.slice(0, 10)
          console.log('搜索的热门搜索', this.hotKey)
        }
      })
    },
    addQuery (query) {
      this.$refs.searchBox.setQuery(query)
    },
    onQueryChange (query) {
      this.query = query
    },
    // 滚动时，输入框失去焦点，键盘隐藏
    blurInput () {
      this.$refs.searchBox.blur()
    },
    // 保存搜索历史记录
    saveSearch () {
      this.saveSearchHistory(this.query)
    },
    // 删除选项
    deleteOne (item) {
      this.deleteSearchHistory(item)
    },
    // 删除所有搜索结果
    showConfirm () {
      /* this.clearSearchHistory() */
      this.$refs.confirm.show()
    },
    // 距离底部有距离
    handlePlaylist (playlist) {
      const bottom = playlist.length > 0 ? '60px' : ''
      this.$refs.shortcutWrapper.style.bottom = bottom
      this.$refs.shortcut.refresh()
      // suggest操作（搜索）
      this.$refs.suggestResult.style.bottom = bottom
      this.$refs.suggest.refresh()
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import "~common/stylus/variable"
  @import "~common/stylus/mixin"
  .search
    .search-box-wrapper
      margin 20px
    .shortcut-wrapper
      position fixed
      top 178px
      bottom 0
      width 100%
      .shortcut
        height 100%
        overflow hidden
        .hot-key
          margin 0 20px 20px 20px
          .title
            margin-bottom 20px
            font-size $font-size-medium
            color $color-text-l
          .item
            display inline-block
            padding 5px 10px
            margin 0 20px 10px 0
            border-radius 6px
            background $color-highlight-background
            font-size $font-size-medium
            color $color-text-d
        .search-history
          position relative
          margin 0 20px
          .title
            display flex
            align-items center
            height 40px
            font-size $font-size-medium
            color $color-text-l
            .text
              flex 1
            .clear
              extend-click()
              .icon-clear
                font-size $font-size-medium
                color $color-text-d
    .search-result
      position fixed
      width 100%
      top 178px
      bottom 0
</style>
